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https://github.com/s00500/ESPUI.git
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reduce memory footprint
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678a2ccf53
commit
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@ -495,7 +495,7 @@ ESPUI includes a range of advanced features that can customise your UIs.
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### Dynamic Visibility
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Cotrols can be made visible or invisible at runtime with the `updateVisibility()` function.
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Controls can be made visible or invisible at runtime with the `updateVisibility()` function.
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```
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ESPUI.updateVisibility(controlId, false);
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@ -13,6 +13,61 @@
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#include "dataTabbedcontentJS.h"
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#include "dataZeptoJS.h"
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#if ESP8266
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#include <umm_malloc/umm_heap_select.h>
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#endif
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static String heapInfo (const __FlashStringHelper* mode)
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{
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#if ESP8266
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uint32_t hfree;
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uint32_t hmax;
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uint8_t hfrag;
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String result;
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result.reserve(128);
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#ifdef UMM_HEAP_IRAM
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// here esp8266 is configurerd to use an extra 16KB (i)ram
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{
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HeapSelectIram useInstructionRamHere;
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ESP.getHeapStats(&hfree, &hmax, &hfrag);
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}
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result += F("IRAM: free: ");
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result += hfree;
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result += F(" max: ");
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result += hmax;
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result += F(" frag: ");
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result += hfrag;
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result += "%\n";
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#endif // !UMM_HEAP_IRAM
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{
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HeapSelectDram useRegularRamHere;
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ESP.getHeapStats(&hfree, &hmax, &hfrag);
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}
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result += F("DRAM: free: ");
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result += hfree;
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result += F(" max: ");
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result += hmax;
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result += F(" frag: ");
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result += hfrag;
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result += "%\n";
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#else // !ESP8266
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result += ESP.getFreeHeap();
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result += ' ';
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#endif // !ESP8266
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result += mode;
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return result;
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}
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// ################# LITTLEFS functions
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#if defined(ESP32)
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void listDir(const char* dirname, uint8_t levels)
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@ -1260,7 +1315,8 @@ void ESPUIClass::beginLITTLEFS(const char* _title, const char* username, const c
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return request->requestAuthentication();
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}
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request->send(200, "text/plain", String(ESP.getFreeHeap()) + " In LITTLEFS mode");
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request->send(200, "text/plain", heapInfo(F("In LITTLEFS mode")));
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});
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server->onNotFound([this](AsyncWebServerRequest* request) {
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@ -1418,7 +1474,7 @@ void ESPUIClass::begin(const char* _title, const char* username, const char* pas
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return request->requestAuthentication();
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}
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request->send(200, "text/plain", String(ESP.getFreeHeap()) + " In Memorymode");
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request->send(200, "text/plain", heapInfo(F("In Memorymode")));
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});
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server->onNotFound([this](AsyncWebServerRequest* request) {
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24
src/ESPUI.h
24
src/ESPUI.h
@ -87,20 +87,20 @@ enum Verbosity : uint8_t
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class ESPUIClass
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{
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public:
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#ifdef ESP32
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ESPUIClass()
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{
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verbosity = Verbosity::Quiet;
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jsonUpdateDocumentSize = 2000;
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jsonInitialDocumentSize = 8000;
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sliderContinuous = false;
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#ifdef ESP32
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ControlsSemaphore = xSemaphoreCreateMutex();
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xSemaphoreGive(ControlsSemaphore);
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#endif // def ESP32
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}
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unsigned int jsonUpdateDocumentSize;
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unsigned int jsonInitialDocumentSize;
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bool sliderContinuous;
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SemaphoreHandle_t ControlsSemaphore = NULL;
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#endif // def ESP32
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unsigned int jsonUpdateDocumentSize = 2000;
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unsigned int jsonInitialDocumentSize = 8000;
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unsigned int jsonChunkNumberMax = 0;
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bool sliderContinuous = false;
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void onWsEvent(AsyncWebSocket* server, AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len);
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bool captivePortal = true;
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@ -205,17 +205,13 @@ public:
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void jsonReload();
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void jsonDom(uint16_t startidx, AsyncWebSocketClient* client = nullptr, bool Updating = false);
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Verbosity verbosity;
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Verbosity verbosity = Verbosity::Quiet;
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AsyncWebServer* server;
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protected:
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friend class ESPUIclient;
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friend class ESPUIcontrol;
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#ifdef ESP32
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SemaphoreHandle_t ControlsSemaphore = NULL;
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#endif // def ESP32
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void RemoveToBeDeletedControls();
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AsyncWebSocket* ws;
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@ -2,6 +2,42 @@
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#include "ESPUIclient.h"
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#include "ESPUIcontrol.h"
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// JSONSlave:
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// helper to process exact JSON serialization size
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// it takes ~2ms on esp8266 and avoid large String reallocation which is really worth the cost
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class JSONSlave: public Print
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{
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public:
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size_t write (uint8_t c) override { counter++; return 1; }
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size_t write (const uint8_t* buf, size_t count) override { counter += count; return count; }
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size_t get_counter () { return counter; }
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static size_t serializedSize (JsonDocument& doc)
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{
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JSONSlave counter;
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serializeJson(doc, counter);
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return counter.get_counter();
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}
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static size_t serialize (JsonDocument& doc, String& str)
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{
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size_t s = serializedSize(doc) + 10; // 10 is paranoid
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str.reserve(s);
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serializeJson(doc, str);
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return s;
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}
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static String toString (JsonDocument& doc)
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{
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String str;
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serialize(doc, str);
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return str;
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}
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protected:
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size_t counter = 0;
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};
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ESPUIclient::ESPUIclient(AsyncWebSocketClient * _client):
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client(_client)
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{
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@ -309,7 +345,7 @@ uint32_t ESPUIclient::prepareJSONChunk(uint16_t startindex,
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elementcount++;
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control->MarshalControl(item, InUpdateMode);
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if (rootDoc.overflowed())
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if (rootDoc.overflowed() || (ESPUI.jsonChunkNumberMax > 0 && (elementcount % ESPUI.jsonChunkNumberMax) == 0))
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{
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// String("prepareJSONChunk: too much data in the message. Remove the last entry");
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if (1 == elementcount)
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@ -407,9 +443,8 @@ bool ESPUIclient::SendControlsToClient(uint16_t startidx,
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if (ESPUI.verbosity >= Verbosity::VerboseJSON)
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{
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Serial.println(F("ESPUIclient:SendControlsToClient: Sending elements --------->"));
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String json;
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serializeJson(document, json);
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Serial.println(json);
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serializeJson(document, Serial);
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Serial.println();
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}
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#endif
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@ -454,10 +489,7 @@ bool ESPUIclient::SendJsonDocToWebSocket(DynamicJsonDocument& document)
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break;
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}
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String json;
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json.reserve(document.size() / 2);
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json.clear();
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serializeJson(document, json);
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String json = JSONSlave::toString(document);
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#if defined(DEBUG_ESPUI)
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if (ESPUI.verbosity >= Verbosity::VerboseJSON)
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